Home / 28,508.63-39,341.90-15,933.38

Finding the Fourth Proportional to 28,508.63, 39,341.90 and 15,933.38

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Solution

The fourth proportional to 28,508.63, 39,341.90 and 15,933.38 is: 21,988.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,508.63 : 39,341.90 = 15,933.38 : x
  2. Step 2: Convert to fraction form
    28,508.63/39,341.90 = 15,933.38/x
  3. Step 3: Cross multiply
    28,508.63x = 39,341.90 × 15,933.38
  4. Step 4: Simplify right side
    28,508.63x = 626,849,285.75
  5. Step 5: Solve for x
    x = 626,849,285.75/28,508.63
  6. Step 6: Final answer
    x = 21,988.06

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.